20310424233213 has 4 divisors (see below), whose sum is σ = 27080565644288. Its totient is φ = 13540282822140.

The previous prime is 20310424233173. The next prime is 20310424233227. The reversal of 20310424233213 is 31233242401302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20310424233213 - 2²⁹ = 20309887362301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310428233213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3385070705533 + ... + 3385070705538.

It is an arithmetic number, because the mean of its divisors is an integer number (6770141411072).

Almost surely, 2^{20310424233213} is an apocalyptic number.

It is an amenable number.

20310424233213 is a deficient number, since it is larger than the sum of its proper divisors (6770141411075).

20310424233213 is an equidigital number, since it uses as much as digits as its factorization.

20310424233213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770141411074.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20310424233213 its reverse (31233242401302), we get a palindrome (51543666634515).

The spelling of 20310424233213 in words is "twenty trillion, three hundred ten billion, four hundred twenty-four million, two hundred thirty-three thousand, two hundred thirteen".